baber/WOPTO huggingface dataset:
Patent GB-1198193-A (GB)
Title: Prevention of Skip Plating in an Electroless Nickel Bath
IPC: C23C18/28
Filed: 1968-05-03
Abstract: 1,198,193. Coating with nickel. AVISUN CORP. May 3, 1968 [May 3, 1967], No.21172/68. Heading C7F. Non-conductive articles are coated with nickel by the following steps: (1) Contacting with a conditioning solution containing a strong mineral acid (2) Sensitizing using a solution containing an oxidizable metal salt (3) Nucleating with a noble metal salt solution (4) Coating with an aqueous hydrogen peroxide solution (5) Electroless deposition of Ni and (6) Electro-plating with Ni. The use of the H 2  O 2  solution prevents skip plating of the Ni articles which exhibit skip plating after conventional deposition in an electroless bath may be successfully coated with Ni by subjecting them to steps 4, 5, and 6 of the above process. The articles to be coated may be of ABS or polyolefins such as polypropylene and polyethylene. In Example 2, polypropylene plaques are conditioned using a solution of stated composition, rinsed in deionized water, sensitized in SnCl 2  /HCl, rinsed, activated using PdCl 2  /HCl, rinsed, contacted with aqueous H 2  O 2 , and immersed in an electroless nickel bath containing 30g/l NiCl 2 , 50 g/l sodium glycollate, and 10 g/l NaH 2  PO 2  at pH5 for 15 minutes at 190‹ F. No skip plating was observed, and the plaques were subsequently electro-plated with Ni.
Patent GB-810847-A (GB)
Title: Improvements in or relating to electrical switch means for direct or alternating current
IPC: H02H3/02
Filed: 1956-07-09
Abstract: 810,847. Protective cut-out arrangements. CALOR-EMAG. ELEKTRIZITATS A.G. July 9, 1956 [July 21, 1955], No. 21191/56. Class 38 (5). A switching arrangement comprises a switch 1 adapted solely for the interruption of normal load currents and an interrupting means 2 in series therewith adapted for response to overload or short-circuit currents, the interrupting means being actuated by the ignition of an explosive substance when the rate of rise of current through the arrangement reaches a predetermined value. In the arrangement shown, the interrupting means 2 includes a switch, indicated at 10, in which a member holding the switch closed is broken by means of an explosive which is ignited by an ignition wire 5. The ignition circuit shown in Fig. 2 includes a transformer 3, a choke 7, an auxiliary transformer 4, a spark gap 8, a three-electrode spark gap 9 and a charged condenser 6. The choke 7 or a resistance (not shown) is adjusted so that when the rate of rise of current in the protected A.C. or D.C. circuit reaches the predetermined value, the spark gaps " fire " and the condenser 6 discharges through the wire 5 to ignite the explosive substance. A magnetic blow-out fuse may be arranged in parallel with the switch 10. A plurality of interrupting means may be arranged in series, the times of response of their ignition circuits being graduated. Should the protected circuit be a D.C. circuit then the transformer 3 may be given a bias magnetization.
Patent GB-670619-A (GB)
Title: Improvements in and relating to cracking hydrocarbons
IPC: C10G45/24
Filed: 1948-08-11
Abstract: <PICT:0670619/III/1> A petroleum distillate of the heavy naphtha-wax distillate range is contacted in the vapour phase with a sulphur-resistant dehydrogenation - hydrogenation catalyst under conditions such that the dehydrogenation of the naphthenes contained in the feedstock is effected to the extent required to produce sufficient hydrogen to convert the organically combined sulphur in the feedstock into hydrogen sulphide; a hydrogen-rich gas and also hydrogen sulphide are separated, the hydrogen-rich gas is recycled to the desulphurizing zone at a rate sufficient to maintain the feedstock in the vapour phase and to maintain the necessary pressure, and the refined feedstock is subjected to thermal cracking for the production of olefines and an aromatic residue.  The desulphurization step is advantageously carried out at a temperature of 650-800 DEG F, a pressure of 25-500 p.s.i., and at a space velocity less than 10 v/v/hr.  Suitable catalysts are metal sulphides and oxides of the 6th Group, and particularly cobalt molybdate supported on alumina.  An Iranian naphtha (boiling range 100-200 DEG C) containing 0,08 per cent sulphur was fed via line 11 to heat-exchanger 12, and then, together with recycle gas, through preheater 13 where it was raised 780 DEG F and a gauge-pressure of 100 lbs./sq. in.  The vapours were then introduced into chamber 10 which contained cobalt molybdate on alumina.  The products were passed through heat-exchanger 12, cooled under pressure in cooler 14, and then passed to separator 15.  The gases leaving separator 15 through line 16 were recycled to chamber 10, at the rate of 4,000 cubic ft./barrel of naphtha, via booster 17, excess gas being vented via line 18.  The liquid from separator 15 was reduced to atmospheric pressure in separator 19, and the bulk of the H2S was removed via line 20.  The liquid from separator 19 was washed with soda in washer 21, and then fed together with superheated steam, supplied through line 24, through furnace 22, where the mixture was heated to 1350 DEG F at a gauge-pressure of 100 lbs./sq. in. and at least 50 per cent of the oil was decomposed to gases containing four or less carbon atoms.  The products from furnace 22 were cooled and passed to separator 25, from which gasoline and light hydrocarbons were removed overhead, while an aromatic residue containing 0,001 per cent sulphur was withdrawn through line 27. Specifications 654.152, 669,536, 669,552 and 669,553 are referred to.
Patent GB-1219216-A (GB)
Title: Electrostatic spraying devices
IPC: B05B5/10
Filed: 1969-04-25
Abstract: 1,219,216. Spray producers. ATLAS COPCO A.B. 25 April, 1969 [26 April, 1968], No. 21372/69. Heading B2F. [Also in Divisions H1 and H2] Electrostatic spraying devices comprise a spray gun which is connected via a high-voltage cable to a high-voltage generator, with a high-ohmic safety resistor between the cable and generator, the high-voltage cable comprising a conducting wire 11 which extends along the internal space of a flexible sleeve 10 of synthetic insulating material, the wire being smaller in diameter but greater in length than the internal space, so that the wire lies loosely within the flexible sleeve. The sleeve may be filled with insulating oil.
Patent GB-423590-A (GB)
Title: Apparatus for hair drying and like purposes
IPC: A45D20/06
Filed: 1933-07-29
Abstract: 423,590. Hair-driers ; spring motors. ROBERTS, J. H. T., 73, Wentworth Road, Golders Green, London. July 29, 1933, No. 21390. [Class 81 (ii)] [See also Group XXVI] Hair-drying or like apparatus comprises a casing including a fan driven directly, or indirectly by means of clockwork, by intermittent impulses applied manually, to pass a stream of air through a simple tubular nozzle of the casing adapted to be heated by exposure to a separate external heating source such as a spirit-burner. A fan d mounted in the casing a carries a pinion wheel e on its spindle. A gear wheel f mounted in slots g has a pinion i engaging an arcuate rack k pivoted at l and extended to form a thumb or finger operated lever m which is depressed to lift the gear f into engagement with pinion e and drive the fan. The rack k then returns to disengage the gear. Air is drawn in through holes in the casing and expelled through the nozzle c which may be of aluminium of substantial thickness to retain its heat. The nozzle may be rifled or contain a scroll or vanes and may be fitted with a guard o. The fan may be driven by clockwork wound by the manually applied intermittent impulses.
Patent GB-1047986-A (GB)
Title: Vacuum sweeping and other floor maintenance machines
IPC: A47L5/30
Filed: 1964-01-15
Abstract: 1,047,986. Floor cleaning machines. G. H. TENNANT CO. Jan. 15, 1964 [Jan. 28, 1963], No. 21445/66. Divided out of 1,047,985. Heading A4F. [Also in Division B3] A floor sweeping machine has a horizontal brush 50 having a cylindrical core 52, the ends of which receive mandrels 62, 66, respectively, and the mandrel 62 carries a resilient key 63, e.g. of rubber, for driving engagement in a slot 51I in the core 52. If the key 63 is not in alignment with the slot 51I when the mandrel 62 is inserted into the core 52, the key 63 is bent into a slot 65 in the mandrel 62 and flexes into the slot 51I after rotation of the core 52 by the driving mandrel 66 to align the slot 51I with the key 63. The driving mandrel 66 has a key pins 67 engaging in a slot 51D in the core 52, but alternatively, the mandrel 66 may be provided with one or more resilient keys similar to the key 63.
Patent GB-1000616-A (GB)
Title: Wall structure of plastics material
IPC: E04C2/40
Filed: 1963-05-29
Abstract: 1,000,616. Building panels. G. PASQUETTI. May 29, 1963 [May 29, 1962], No. 21446/63. Heading E1B. Building panels for walls and partitions and comprising rectangular sheets 5 of laminated plastics enclosing foamed polyurethane 2, are formed on two or four sides with tubular members 1 each provided with an interlocking formation 3. The members 1 are formed with apertures 9 allowing the entry of the filling 2 and they may also be reinforced with tubular metal inserts. Bent-over tabs 4 aid in securing the framing members to the sheets 5. At the corner 1 or a junction of a wall the panels are secured together by an intermediate post member 7, Fig. 8, which is also metal reinforced at 14 and is provided with appropriate fastening formations 8. Panels at the end of a wall have the interlocking formation 3 covered with a trimming member, or alternatively at that edge are formed without an interlocking formation. Trimming members may also cover unused interlocking formations on a post member 7.
Patent GB-1505525-A (GB)
Title: Pyridopyrimidines
IPC: C07D471/04
Filed: 1975-05-20
Abstract: 1505525 Derivatives of pyrido[1,2-a]pyrimidine-9-carboxylic acid E R SQUIBB & SONS Inc 20 May 1975 [9 Sept 1974] 21563/75 Heading C2C The invention comprises compounds of formula and their pharmaceutically acceptable salts wherein R 1  is alkyl or Ph; R 2  is H or alkyl; R 3  is H, halogen, alkyl or Ph; R 4  is alkyl; each Ph may be substituted by 1-2 of alkyl, alkoxy, halogen or CF 3 ; and the alkyl and alkoxy groups have 1-6C atoms. In examples, these compounds are prepared by hydrogenating, in presence of Raney Ni, the fully unsaturated analogues; the free acids of latter are also prepared. Therapeutic compositions having antidepressant activity comprise compounds of the above formula, and are preferably administered orally.
Patent GB-1489007-A (GB)
Title: Logic circuits
IPC: H03K19/21
Filed: 1975-05-20
Abstract: 1489007 Transistor logic circuits INTERNATIONAL BUSINESS MACHINES CORP 20 May 1975 [28 June 1974] 21624/75 Heading H3T A logic circuit, e.g. an exclusive OR, comprises a pair of MOSFETs 21, 22 of the same conductivity type coupled between a first supply voltage terminal 25 and an output 26 and an inverter formed by one of the MOSFETs 21 connected adjacent to one of the supply voltage terminals 25 and an additional MOSFET 36 of opposite conductivity type, connected to the other supply voltage terminal 31. In the exclusive OR circuit shown, the inputs are supplied to A, B and the inverse forms A, B of the input are derived by inverters comprising MOSFETs 21, 36 and 23, 38. The substrates of the N-type MOSFETs are connected to ground whereas those of the P-type are connected to +V. By using transistors 21, 23, which are part of a known exclusive OR circuit as parts of the inverter, two MOSFETs are saved. Fig. 1 (not shown) depicts a cross-section of an integrated circuit comprising two MOSFETs.
Patent GB-969686-A (GB)
Title: Improvements in road vehicle seats particularly for children
IPC: A47D1/10
Filed: 1962-06-05
Abstract: 969,686. Children's vehicle seats. R. A. ELLIS, and P. G. ELLIS. May 20, 1963 [June 5, 1962], No. 21635/62. Heading A4J. A child's seat which is attachable to a vehicle comprises a seating base 1, a fixed back rest 2, which is sufficiently high to support the back and head of a normal child, hooks 8 attached to the back rest 2, an angularly adjustable strut 11 pivotally secured to the seat and adapted to extend rearwardly of the back rest 2, a safety device for holding a child on the seat, and at least one loop, hole or equivalent on the base 1, for carrying a strap 17 to be secured to the floor or other fixed structure in the vehicle, below the site on which the seat is to be hooked. The hooks 8 may be U-shaped to fix on to the back of a seat 10, or L-shaped to be secured under the dashboard. The legs 9 of the hooks 8 have spaced holes to adjust the hooks vertically on the seat. The strut 11 may be angularly adjusted by using complemental toothed clutch discs 19, or (Fig.9) a detent 27 on a leaf spring 28, which is attached to the back rest 2, to engage between teeth on the end of the strut 11, or (Fig. 11) a secondary strut 11a to engage holes in a block 31 on the back rest 2. Also the strut 11 is U-shaped and may be telescopic. A second angularly adjustable U-shaped strut 14 may be attached to the base 1 to project to the front of the seat. The safety device may comprise a tray 4 or a lap strap attached to the seat. The seat shown in Fig. 9 has a U-frame 24 forming the seating base which may be folded up against the back rest about pivot 25. The seat may be used outside the vehicle with the struts 11, 14 being fixed and forming legs.
Patent GB-134114-A (GB)
Title: Improvements in Walls and in Blocks or the like for Building same.
Inventor: SHARP CECIL ALEXANDER
IPC: E04B2/36
Filed: 1918-12-24
Abstract: 134,114. Sharp, C. A., and Smith, S. H. Dec. 24, 1918. Double walls.-Walls are formed of angular blocks having, in addition to the usual groove b<1> in the vertical edge of the longer limb, a similar groove in the outer face of the shorter limb and in line with the other groove. The usual grooves are also formed in the top and bottom edges, and the blocks are laid with the shorter limbs resting on the longer limbs of the blocks below and stag. gered in alternate courses.
Patent GB-1488743-A (GB)
Title: Sewing machine and electric motor drives therefor
IPC: D05B69/18
Filed: 1975-05-20
Abstract: 1488743 Sewing machine SINGER CO 20 May 1975 [15 Nov 1974] 21667/75 Heading DIG  A sewing machine is provided with a lowinertiaelectric driving connected thereto through a speed reduction drive, the motor being controlled by a circuit including an on/off motor controlling switch. The control circuit permits dynamic braking of the motor and includes a 3 position motor speed switch. The motor has an armature of lightweight plastics with a non magnetic stainless steel central shaft; the permanent magnet brushes are of rare earth cobalt alloys. The motor may receive D.C. rectified from a mains supply or a rechargeable battery pack may be included in the bed of the machine.
Patent GB-1420801-A (GB)
Title: Electronic steering system for a circular section acoustic transducer array
IPC: G10K11/34
Filed: 1973-05-07
Abstract: 1420801 Ultrasonic directional systems THOMSON-CSF 7 May 1973 [10 May 1972] 21720/73 Heading H4D A system for electronically steering a circular array 1 of electro-acoustic receiving transducers composed of N columns of transducers, the columns being spaced from each other by half a wavelength of the transducer operating frequency, comprises an input processor 2 for converting the N antenna signals into real parts X1 . . . XN and imaginary parts Y1 . . . YN of corresponding complex signals. The signals are multiplexed in corresponding real and imaginary pairs by devices 3 and fed to sampling circuits 4. The samples are then fed to low pass interpolating filters 5 and to further sampling circuits 6. The resulting signals are passed to an output processor 7 for combination to give the desired directivity characteristic. If the signals picked up by the receiver are of narrow bandwidth then processor 7 may be a time-compression correlator. The system is controlled by a clock 9 and control unit 8 which furnishes multiplexer signals P1 . . . PN controlling devices 3, signals of frequencies F1 and F2 for respective control of the sampling circuits 4 and 6 and synchronizing signals S for the output processor 7. Frequency F2 is fixed but frequency F1 is variable according to the required directivity characteristic. Fig. 2 (not'shown) illustrates a circuit for unit 8 in detail. A further example for unit 8 is given in Fig. 3 (not shown) in this case, frequency F1 being arranged to vary slowly for, e.g. azimuthal stabilization of the directivity to cancel yawing and slewing motions.
Patent GB-1286762-A (GB)
Title: Colour television apparatus
Inventor: SCHNEIDER HANS DIETER
IPC: H04N9/09
Filed: 1970-05-06
Abstract: 1286762 Television FERNSEH GmbH 6 May 1970 [16 May 1969] 21725/70 Heading H4F In a colour television camera comprising a plurality of slow electron beam tubes, e.g. for red (R), blue (B) and white (luminance W) signals respectively, each tube may react differently when the light intensity at a point in the field of view changes suddenly, as shown in Fig. 1a where only the W signal changes linearly with time to its new value. Linear matrixing of the signals would give an incorrect (G) green signal and a moving white object would be reproduced with a green fringe. The non-linear response of the tubes increases as the light intensity falls and the beam current rises. Accordingly at a low light level where the "fringe effect" is most marked, the beam currents are adjusted so that they are each above the level L necessary for complete discharge of the target and so that they have relative magnitudes such that the non-linear response is equalized between the tubes and a compatible G signal is obtained. The beam currents are 120%, 200% and 400% of L respectively for the B, R and W tubes in a preferred embodiment. The signals are then pre-amplified to extents necessary for colour balance and are limited to a level approximately equal to the maximum signal from the tube with the smallest beam current, e.g. to a value corresponding to 110% of L, before being passed to a linear matrix. The matrix outputs may be limited to a value corresponding to 105% L. Fig. 3 (not shown), illustrates an arrangement whereby a switch applies different bias potentials to the tube grids to alter the beam currents depending on whether the light level is small, normal or large and correspondingly alters the pre-amplification factor to large, normal or small, respectively. At normal and large light levels the beam currents are equal at 200% L. In Fig. 4 (not shown), any signal in excess of the 110% L limited value is amplified and fed back to a grid of the tube so as to reduce the beam current.
Patent GB-597727-A (GB)
Title: Improvements in or relating to vans, storage cupboards and like storage spaces
IPC: A47B77/16
Filed: 1945-08-24
Abstract: 597,727. Shelves. LYONS & CO., Ltd., J., and KENNETT, G. C. Aug. 24, 1945, No. 21765. [Class 52(i)] [Also in Group XXXII] A van (see Group XXXII), deep storage cupboard or the like has sets of shelves such that the shelves of each set may be stacked horizontally above one another or extended in alignment. As shown applied to a bread van three shelves 2 in each set run by means of flanges 3 on guides 4a, 4b, 4c mounted on blocks 7 on the side walls 5 of the van. The guides 4b, 4c for the (rear) shelves nearer the door 1 have a forward horizontal portion and a rearward horizontal portion at the same height as the upper guide 4a joined by a sloping portion, so that the lower shelves 2 may be pulled rearwardly from under the top shelf 2 onto the raised portion of the guides and then pushed forwardly to engage the adjacent guides 4a, 4b. The front shelf 2 may also slide on its guide 4a and all the shelves may be interchangeable. Stops 6 on the guides engage cut-away portions of the shelf flanges 3 to prevent accidental movement from the aligned position and the upper surfaces of the blocks 7 may be level with the shelves 2 to form additional loading spaces,
Patent GB-1514514-A (GB)
Title: Bispiperazido phosphorus and trispiperazidophosphorus compounds
IPC: C09K21/12
Filed: 1975-05-21
Abstract: 1514514 Phosphorus-containing piperazine derivatives SA TEXACO BELGIUM NV 21 May 1975 21796/75 Heading C2P [Also in Division C5] The invention comprises piperazidophosphorus compounds having the formula wherein m is 0 or 1, X or O or S, Y is an optionally substituted aliphatic, cycloaliphatic or aromatic hydrocarbon group or heterocyclic group, a group of the formula -N(R) 2  in which R is H, an optionally substituted aliphatic, cycloaliphatic or aromatic hydrocarbon group or heterocyclic group, or the two groups R together with the N atom to which they are attached represent a N-containing heterocyclic ring, which may be a further ring of the formula or a group of the formula -OR where R is as defined above, R<SP>1</SP> is a substituent on the piperazine ring, R<SP>2</SP> is H or a substituted or unsubstituted aliphatic, cycloaliphatic or aromatic hydrocarbon group or heterocyolic group, or an acyl, organic sulphonyl, substituted phosphonyl as defined below or substituted carbamoyl group and n is 0 or an integer, and salts of such compounds in which at least one R<SP>2</SP> is a hydrogen atom, but with the proviso that Y is not dimethylamino when X is O and R<SP>1</SP> and R<SP>2</SP> are each H, and Y is not a beta-chloroethyl group or a 2-(hydroxy, alkoxy, aralkoxy or acyloxy)-5-aryl (or styryl) phenyl group. The substituted phosphonyl group which R<SP>2</SP> can represent is defined as a group of the formula -P(X)-(R<SP>3</SP>) 2  where X is O or S and R<SP>3</SP> is an aliphatic, cycloaliphatic or aromatic group, or is -OR, -SR or N(R) 2  in which R is as defined above. The compounds may be obtained by reacting a compound: (X) m =P(Hal) 3  or where Hal is Cl or Br with an excess of a piperazine derivative of the formula and when the resulting product is one in which R<SP>2</SP> is H it can be further reacted with either (a) a compound R<SP>2</SP>Hal where R<SP>2</SP> is an acyl, phosphonyl or sulphonyl radical as defined above to yield a compound having a corresponding R<SP>2</SP> substituent, (b) an acrylic compound: CH 2 =CH-Z where Z is CN, COOAlk, or a sulphone (SO 2 R) or phosphonyl -P(X)(R) 2  group to give a product in which R<SP>2</SP> is or (c) with an isocyanate R . NCO to give a compound in which R<SP>2</SP> is -CO. NH . R, R being, e.g. methyl or phenyl. The products are useful as additives for lubricating oils. Also, compounds in which R<SP>2</SP> is H are useful in polymer-forming reactions and those in which R<SP>2</SP> is a beta-carboalkoxy group are useful as flame-retardant plasticizers.